title: [Characterization of genetic EEG variables with the amplitude-interval-analysis. II. Variations of the beta-activity and controls (author's transl)].
abstract: In 165 adult male probands with different variants of beta-Activity (fronto-percentral beta-wave-groups; diffuse beta-waves) including 76 controls from the same proband population but with inconspicuous EEG patterns, a quantitative description of unipolar leads was carried out using a program for amplitude-interval (time-domain) analysis. Statistically significant differences between some means of the examined parameters were found between the various EEG variants. No single parameter, however, separates these variants reliably. For such a separation, methods of multivariate statistics will have to be used. Significant differences between left and right hemispheres (especially lower average alpha-activity together with higher beta-activity on the left-hand side) were found in all examined EEG types including the controls. Hence, the lack of a significant side difference in the variant with monotonous alpha-waves as described in the first report of this series remains unique.
mesh_terms: D000328:Adult; D001611:Beta Rhythm; D004569:Electroencephalography; D005071:Evoked Potentials; D014644:Genetic Variation; D005838:Genotype; D006801:Humans; D008297:Male; D008875:Middle Aged
vernacular_title: Charakterisierung erblicher EEG-Variaten mit Hilfe der Amplituden-Intervall-Analyse. II Varianten der beta-Tätigkeit und Kontrollen.